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Topic: Arabia Terra


  
  Astrobiology Magazine
Arabia Terra: Erosion has exposed hundreds of layers of the same thickness and pattern on the floors of craters throughout western Arabia Terra (first named in 1979).
Terra Meridiani: This general region is one of the more complex on Mars, with a rich array of sedimentary, volcanic, and impact surfaces that span a wide range of martian history.
Margaritifer Terra: To the northwest is the plain of Chryse Terra, in the middle of which lies the Viking 1 landing site.
www.astrobio.net /news/print.php?sid=573   (1618 words)

  
 NAI: News Stories   (Site not responding. Last check: 2007-10-21)
The eroded terrain of western Arabia Terra is indicated and may have been a source for much of the sediment in the northern plains.
When the researchers began studying maps from the new data, they noticed that one region, western Arabia Terra, is a kilometer lower than the rest of the highlands and borders the lowlands to the north.
The researchers are now focusing attention on a large outcrop of hematite occurring within western Arabia Terra, the Terra Meridiani region.
nai.arc.nasa.gov /news_stories/news_detail.cfm?article=old/swept_away.htm   (994 words)

  
 Catalog Page for PIA04790
Arabia Terra is a vast, heavily cratered region in the martian northern hemisphere.
Much of Arabia Terra is thickly blanketed by dust.
In Arabia, it is common to find bright and dark slope streaks, and to find them together.
photojournal.jpl.nasa.gov /catalog/PIA04790   (151 words)

  
 BBC NEWS | Science/Nature | Probe maps water vapour on Mars
The Arabia Terra finding agrees with a map of water-equivalent hydrogen on the Red Planet compiled by Nasa's Mars Odyssey probe.
Arabia Terra was found to be one of the most significant "reservoirs" of subsurface hydrogen.
Arabia Terra is a 5,000km-wide swathe of cratered terrain to the east and north of Tharsis.
news.bbc.co.uk /1/hi/sci/tech/3927041.stm   (297 words)

  
 Global Topography of Mars
The sloping region under part of the southern highlands (yellow/orange) and the uniform thickness region under the northern lowlands (blue) and Arabia Terra region (green) represent two distinct crustal provinces.
This boundary does not correlate with the crustal structure, which indicates that the geological manifestation of the boundary is primarily due to surfical rather than internal processes.
Shown for comparison (dashed line) is the depth to the Curie temperature indicated from analysis of MGS magnetic data in Terra Cimmeria.
mars.jpl.nasa.gov /mgs/sci/mola/mar10-2000/internal_paper.html   (927 words)

  
 Putative shorelines in northern Arabia Terra, Mars
Results are consistent with a shoreline interpretation for the Arabia and Deuteronilus contacts but do not support the proposed Acidalia shoreline.
The Arabia contact follows an equipotential surface with a mean elevation of −3707 m and a mean deviation of ±13 m.
For both the Deuteronilus and Arabia contacts, there is geomorphic evidence for erosion, and some landforms are similar to analogous terrestrial coastal landforms.
www.agu.org /pubs/crossref/2004/2003JE002205.shtml   (216 words)

  
 Astronomy Web 2001   (Site not responding. Last check: 2007-10-21)
These images from Mars Global Surveyor reveal hundreds of layers of similar thickness, texture and pattern that have been exposed in an impact crater in western Arabia Terra (left) and in a canyon located in southwestern Candor Chasma (right) of the Valles Marineris.
The material might alternatively be due to deposits of airborne dust settling out of the atmosphere, that were later buried and compacted.
Arabia is a peninsula of southwestern Asia, bordering the Persian Gulf, the Arabian Sea, and the Red Sea; terra means "extensive land mass"; candor is Latin for "glossy whiteness or sincerity", and chasma is "a deep, elongated, steep-sided depression".
ase.tufts.edu /astroweb/view_pic.asp?id=260   (150 words)

  
 MarsNews.com :: Did an impact basin make a water "reservoir" on Mars?
Posted by tourdemars to Planetology at March 20, 2004 10:31 AM According to an analysis by a team of planetary scientists headed by James Dohm (University of Arizona), a large, underground aquifer lies within the remains of an ancient impact basin in Arabia Terra on Mars.
Specifically, the team proposes that the Arabia basin spanned 1,800 miles (3,000 km) in diameter, and that it formed sometime before about 3.5 billion years ago.
As essentially a big hole in the ground, such a place would have attracted and trapped a lot of water and sediments during much of Mars's history.
www.marsnews.com /archives/2004/03/20/did_an_impact_basin_make_a_water_reservoir_on_mars.html   (142 words)

  
 Geologic Map Transecting the Highland/Lowland Boundary Zone, Arabia Terra, Mars: Quadrangles 30332, 35332, 40332, AND ...   (Site not responding. Last check: 2007-10-21)
Arabia Terra is a large region of cratered terrane extending from about 20° W. longitude eastward across the prime meridian to about 300° W. longitude for an average east-west width of about 5,000 km.
The four quadrangles mapped (30332, 35332, 40332, 45332) provide a north-south strip from highland terrane in the south to lowland terrane in the north.
Although underlain by what appears to be typical highland terrane, Arabia Terra is anomalously low, with elevations generally below the planetary reference (Smith and others, 1999).
geopubs.wr.usgs.gov /i-map/i2746   (394 words)

  
 USGS Astro: Planetary Nomenclature - Mars Nomenclature Terra (Planetocentric East)   (Site not responding. Last check: 2007-10-21)
See TERRA in the descriptor terms page for additional information.
Arabia Terra 22.8N 5.0E 5100.0 EU LA I2483 MC12 5 1979 57 TA Classical albedo feature name.
Tempe Terra 39.7N 289.0E 2573.0 EU GR I2573 MC03 5 1979 57 TA From albedo feature at 40N, 70W.
planetarynames.wr.usgs.gov /mare/mareterr.html   (264 words)

  
 Icelan - Announcement   (Site not responding. Last check: 2007-10-21)
So scientist zoomed in on what they thought would be the must interesting, the Arabia Terra crater.
It clearly shows that there is in fact some kind of formation near the Arabia Terra crater.
The students further asserted that the formation was of terrestrial origin, as improbable as that might be.
www.icelan.com /announce04.htm   (395 words)

  
 Associazione Lunar Explorer Italia - Fotografie ed Immagini della Luna, Marte, Il Sistema Solare e l'Universo - Mars ...
A "fresh crater" on Arabia Terra-38 visteThis full-resolution (1.5 meters x 5 feet x pixel) Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a fairly small, fresh meteor impact crater in far southeastern Arabia Terra.
Streaks on the edge of a Martian crater-32 visteDark slope streaks are a common feature on slopes thickly-mantled by dust in the Tharsis, Arabia, and western Amazonis regions of Mars.
They are most common in Arabia Terra, and some are shown in this MGS image.
www.lunexit.it /gallery/thumbnails.php?album=36&page=8   (1327 words)

  
 Tharsis and the Early Climate of Mars
Loading by Tharsis also explains a ring of negative gravity anomalies and a topographic trough around Tharsis, as well as gravity-anomaly and topographic highs centered in the Arabia Terra region and extending northward toward the Utopia basin.
We showed that the Tharsis-induced trough and antipodal high were largely in place by the end of the Noachian Epoch, the earliest stratigraphic epoch in Martian history (about 4 billion years ago).
A region antipodal to Tharsis (extremes of map near 80° E longitude) is centered on Arabia Terra, which is both a topographic and a gravitational high.
ltpwww.gsfc.nasa.gov /tharsis/tharsis_paper.html   (648 words)

  
 BBC NEWS | World | South Asia | Who is Osama Bin Laden?
Born in Saudi Arabia to a Yemeni family, Bin Laden left Saudi Arabia in 1979 to fight against the Soviet invasion of Afghanistan.
After the Soviet withdrawal, the "Arab Afghans", as Bin Laden's faction came to be called, turned their fire against the US and its allies in the Middle East.
Bin Laden returned to Saudi Arabia to work in the family construction business, but was expelled in 1991 because of his anti-government activities there.
news.bbc.co.uk /hi/english/world/south_asia/newsid_155000/155236.stm   (708 words)

  
 SPACE.com -- Mars Odyssey's Picture of the Day: Crater Rim in Southern Arabia Terra   (Site not responding. Last check: 2007-10-21)
The eastern rim of this unnamed crater in Southern Arabia Terra is very degraded (beaten up).
On Mars, however, Southern Arabia Terra is a cold place of cratered terrain.
This almost frothy-looking image is the badly battered edge of an ancient crater, which has suffered both erosion and bombardment from asteroids, comets, or other impacting bodies over the long course of its existence.
www.space.com /scienceastronomy/solarsystem/mars_daily_020503.html   (411 words)

  
 Terra Traveler Jordan - Camel riding and trekking in Wadi Rum desert, dead sea and Petra   (Site not responding. Last check: 2007-10-21)
Terra Traveler Jordan - Camel riding and trekking in Wadi Rum desert, dead sea and Petra
We at Terra Traveler organize exciting and adventurous tours that you will remember for the rest of your life.
Our main objective is to offer our customers the beauty and magic of our land in few days.
www.terratraveler.com   (367 words)

  
 USGS Astro: Planetary Nomenclature - Mars Nomenclature Terra (Planetographic West)   (Site not responding. Last check: 2007-10-21)
Arabia Terra 23.0N 355.0W 5100.0 EU LA I2483 MC12 5 1979 57 TA Classical albedo feature name.
Tempe Terra 40.0N 71.0W 2573.0 EU GR I2573 MC03 5 1979 57 TA From albedo feature at 40N, 70W.
Terra Sirenum 40.0S 150.0W 3900.0 EU GR I2353 MC24 5 1979 57 TA Classical albedo feature name.
planetarynames.wr.usgs.gov /mars/marsterr.html   (264 words)

  
 SPACE.com -- Mars Odyssey's Picture of the Day: Knobby terrain in Northern Arabia Terra
This THEMIS visible image shows a region in northern Arabia Terra near 44 N, 322 W (38 E).
Knobby or scabby plains units that mantle and modify a pre-existing cratered surface dominate the unusual landscape in this region.
The photos are not yet fully calibrated for scientific use, and so no science findings are being discussed, said researchers who operate the camera from Arizona State University.
www.space.com /scienceastronomy/solarsystem/mars_daily_020425.html   (500 words)

  
 Chronology of the Viking Missions : Extended Mission
After analysis of the pictures taken during revolution 3 to 6 of the pre-launch selected landing site (A1), it seems that it is too rough to assure a safe landing.
This is done at altitudes of approximately 23000, 12000 and 6000 km.
Survey sequence of Acidalio Planitia and Arabia Terra (5 pictures).
www.geocities.com /mgaelens/VikingChronologyPrimary1_1.html   (626 words)

  
 Mars surface
There are two other main dark mare areas in the northern hemisphere, nearly on the other side of the planet from Syrtis Major there is Mare Acidalium, and surrounding the north polar cap Mare Boreum.
Otherwise the northern hemisphere's coloring is quite light, containing two large bright "continents"; Arabia Terra and Amazonis Planitia.
The best view ever of Mars from Earth; the Hubble space telescope took this picture during the opposition of 1997, when Mars was only 100 million kilometers away from Earth.
www.student.oulu.fi /~jkorteni/space/mars/surface   (1146 words)

  
 Swept Away - Study Suggests Massive Water Erosion On Mars
Brian M. Hynek, doctoral candidate in Earth and Planetary Sciences, and Roger J. Phillips, Ph.D., professor of earth and planetary sciences and director of Washington University,s McDonnell Center for the Space Sciences, suggest that western Arabia Terra, an area the size of the European continent, experienced an extensive erosion event caused by flowing water.
Before the Mars Global Surveyor mission, this region was lumped in with the rest of the highlands.
Looking carefully at western Arabia, they noticed that it differs from the rest of the highlands in having very few large craters, and only a few traces of valley networks, and numerous erosional remnants.
www.rense.com /general10/water.htm   (677 words)

  
 Spaceflight Now | Breaking News | Evidence of ancient Martian lakes, shallow seas found
They are most common within impact craters of Western Arabia Terra, the inter-crater plains of northern Terra Meridiani, the chasms of the Valles Marineris, and parts of the northeastern Hellas Basin rim.
Hundreds of layers of similar thickness, texture, and pattern have been exposed by erosion in a 64 kilometer-wide (40 mile-wide) impact crater in western Arabia Terra.
Most of them occur in six specific regions that are within 25 degrees of latitude of the martian equator -- Valles Marineris, Mawrth Vallis, Western Arabia Terra, Terra Meridiani, northern Hellas, and part of the Aeolis region south of Elysium Planitia.
spaceflightnow.com /news/n0012/04marslakes   (1075 words)

  
 MarsDVD.com
The northern part is dominated by relatively smooth plains.
The central part is characterized by dark depression--the northern Chryse basin, which contains relatively smooth plains where several large outflow channels terminate.
The depression is partly bounded to the southwest by the highly faulted and heavily cratered Tempe Terra province, to the southeast by the heavily cratered Arabia Terra province, and to the north by relatively smooth plains of Vastitas Borealis.
www.marsdvd.com /Maps.htm   (1774 words)

  
 Mars Global Surveyor MOC2-466 Release   (Site not responding. Last check: 2007-10-21)
Northeast Arabia Terra is a heavily cratered region that has undergone considerable erosion.
The erosion has exposed filled, buried meteor impact craters; it has also eroded craters down so that all that remains is the former floor of a crater.
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows some of the eroded terrain in northeast Arabia Terra near Huo Hsing Vallis.
www.msss.com /mars_images/moc/2003/08/28   (196 words)

  
 News in Science - Mars gases reveal enticing clues for life - 21/09/2004
Water vapour and methane gas have been found in the same places on Mars, strengthening speculation that the Red Planet could be a haven for microbial life, space scientists say.
European Space Agency data from the Mars Express probe and the US spacecraft Mars Odyssey show that low-atmosphere levels of water vapour and methane "significantly overlap" in three places on the planet's equator: Arabia Terra, Elysium Planum and Arcadia-Memnonia.
The concentrations also coincide with an ice layer a few tens of centimetres below the surface, which NASA's Odyssey spacecraft has detected.
www.abc.net.au /science/news/stories/s1203608.htm   (438 words)

  
 ESA Portal - Life in Space - Water and methane maps overlap on Mars: a new clue?
PFS observed that, at 10-15 kilometres above the surface, water vapour is well mixed and uniform in the atmosphere.
However, it found that, close to the surface, water vapour is more concentrated in three broad equatorial regions: Arabia Terra, Elysium Planum and Arcadia-Memnonia.
Here, the concentration is two to three times higher than in other regions observed.
www.esa.int /esaCP/SEMAK21XDYD_Life_2.html   (590 words)

  
 Lowell's Legacy- Part 4
Another Viking era "Face" was spotted near the border of Arabia Terra and the Syrtis Major regions.
Coincidentally, all of the missing wide angle images are the ones that would have captured additional images of the Arabia Terra face.
As for the narrow angle images taken in Arabia Terra, MOC SP126004 reveals some interesting features in the crater directly adjacent to the face.
palermoproject.com /lowell2004/legacy4.htm   (7130 words)

  
 MarsNews.com :: Probe maps water vapour on Mars
Posted by tourdemars to Mars Express at July 26, 2004 11:44 AM Mars Express has detected an area of high water vapour over a region of the Red Planet called Arabia Terra.
Posted by: John C Redfern at July 26, 2004 04:25 PM Water vapor over Arabia Terra and Tharsis Uplift region might facilitate cloud formation with the valley.
Posted by: Jerry at August 2, 2004 10:18 AM The density of space hydrogen in the vicinity of Mars is about 1 atom per CC.
www.marsnews.com /archives/2004/07/26/probe_maps_water_vapour_on_mars.html   (346 words)

  
 The Eternal Golden Braid
Following up on this and this MPOD, today's Martian Picture of the Day is another look at fretted terrain, this time a portion of Mars north of the eastern Arabia Terra (near 32°N, 299°W).
Today's Martian Picture of the Day shows us a mid-latitude field of sand dunes in Noachis Terra near 49.6°S, 352.9°W. Patches of autumn frost, possibly water ice, are seen on the south/southeastern (bottom/lower right) slopes of the dunes.
The image shows sedimentary rock outcrops within a crater in western Arabia Terra near 8.8°N, 1.3°W. These are eroded from the same rocks as seen in an earlier Martian Picture of the Day from December 1, 2003.
theeternalgoldenbraid.blogspot.com /2004_10_01_theeternalgoldenbraid_archive.html   (6634 words)

  
 webbcv
Thesis: Investigating the topography and geomorphology of the proposed Arabia, Deuteronilus and Acidalia shorelines contiguous to the dichotomy boundary in northern Arabia Terra, Mars.
Webb, V.E. and G.E. McGill, Assessing the geomorphic development of putative shorelines contiguous to Northern Arabia Terra, Mars, Lunar and Planetary Science Conference Abst.#1156, 2003.
Webb, V.E, Investigating the topography and geomorphology of the proposed Arabia, Deuteronilus and Acidalia shorelines contiguous to the dichotomy boundary in Northern Arabia Terra, Mars, M.Sc.
www.geo.umass.edu /planetary/webbcv.html   (383 words)

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